Federal Regiment

3rd Pennsylvania Reserves

Organized: Philadelphia, PA; mustered in 05/20/1861
Disbanded/Mustered out: Pittsburgh, PA 06/17/1864

Commanding Officer on the Antietam Campaign:
LCol. John Clark

This Regiment's Chain of Command:
  Army - Army of the Potomac
  Corps - First Army Corps
  Division - 3rd Division, 1st Corps
  Brigade - 2nd Brigade, 3rd Division, 1st Corps

Unit history

The Regiment saw duty in the defences of Washington DC til Spring of 1862. They were then on the Peninsula and Bull Run Campaigns.

On the Antietam Campaign

"Arriving on the field on the afternoon of September 16th, Lieut. Col. John Clark. Comd'g the Regiment immediately deployed eight companies as skirmishers."

"When the 2nd Brigade advanced on the morning of September 17th, the Regiment fell into line, and 600 yards South of this point became engaged with Hood's Confederate Division".
(from the 3rd Reserve's monument on the field at Antietam National Battlefield)

Maps Showing this Unit

Detail Map #1: Hookers First Corps Sweeps Down the Hagerstown Pike (5-7 am)
Detail Map #2: Hood's Division Retakes Miller's Cornfield (7-8 am)
Detail Map #3: Mansfield's Twelfth Corps Attacks into Miller's Cornfield (7-9 am)

Battlefield Tablets for this Unit

Tablet #1: First Army Corps - 16 Sep, 2 PM to 16 Sep, 6 PM
Tablet #15: Meade's Division, First Army Corps - 16 Sep, 2 PM to 16 Sep, 8 PM
Tablet #120: Army of the Potomac - 17 Sep, 5 AM to 17 Sep, 12 PM
Tablet #16: Magilton's Brigade, Meade's Division - 17 Sep, 5 AM to 17 Sep, 9 AM
Tablet #11: Meade's Division, First Army Corps - 17 Sep, 6 AM to 17 Sep, 9 AM
Tablet #12: Magilton's Brigade, Meade's Division - 17 Sep, 6 AM to 17 Sep, 9 AM

After the Antietam Campaign

They were at Fredericksburg in December and on the "mud march" of January 1863, but spent the remainder of that year again defending Washington. They campaigned in Western Virginia in 1864, seeing action at Cloyd's Mountain in May.

References & Notes

Unit service details from Dyer.1

We have 32 individuals in the AotW database who were on the Maryland Campaign with this unit:

Co.	Rank	Name	Casualty?
A	Pvt	Ash, James D.	WIA 09/17
A	Pvt	Otten, Heinrich	MWIA 09/17
B	Pvt	Bidwell, Hiram	Died (d) 10/20
B	Corp	Dickens, Jesse R.	KIA 09/17
B	Sgt	Nicholson, Hobart	KIA 09/17
B	Pvt	White, Henry	MWIA 09/17
B	Pvt	Williams, Alfred	MWIA 09/17
C	Corp	Croasdale, Benjamin F.	WIA 09/17
D	Pvt	Hendley, Frederick	KIA 09/17
D	Capt	Straub, Florentine H.	KIA 09/17
E	Sgt	Blaker, John	MWIA 09/17
E	Pvt	Boulton, James	WIA 09/17
E	Lt	Glenn, Edwin Atlee
E	Pvt	Krewson, Luther	MWIA 09/17
E	Pvt	Wilson, David M.	WIA 09/17
E	Pvt	Yonker, Samuel	WIA 09/17
F	Pvt	Lease, James	KIA 09/17
F	Pvt	Rusk, Peter	KIA 09/17
G	Pvt	Bingham, James	KIA 09/17
G	Pvt	Dunbar, Peter	KIA 09/17
G	Pvt	Murray, James	WIA 09/17
G	Corp	Toon, Edward	WIA 09/17
G	Pvt	Ubil, William Butler	Died (d) 10/12
G	Corp	Wilson, Richard	KIA 09/17
H	Pvt	Brown, Lewis	KIA 09/17
H	Sgt	Case, Ephraim	KIA 09/17
H	Pvt	Crater, Jacob B.	KIA 09/17
I	Sgt	Read, Joseph M.	WIA 09/17
K	Corp	Brittain, William J.	KIA 09/17
K	Pvt	Rudolph, Joseph	KIA 09/17
F&S	Maj	Briner, William	WIA 09/17
F&S	LCol	Clark, John C

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